
It is postulated that higher thermal comfort levels in these SOS types are linked to form attributes that enhance air velocity. Of these five, vertical breezeways and horizontal breezeways are the most thermally comfortable for all activities during a typically warm hour. Findings suggest that the five SOS types perform differently in terms of thermal comfort (based on PMV*), environmental parameters (air temperature, mean radiant temperature, relative humidity, and air velocity), and building form attributes (height-to-depth ratio, open space ratio, and green plot ratio). This study classifies 63 SOSs in four tall buildings of Singapore into five types based on literature review: perimeter buffers, sky terraces, horizontal breezeways, breezeway atria and vertical breezeways.

Thermal comfort in SOSs within tall buildings, however, may vary depending on the type and form attributes that define it. In highly dense tropical cities, a semi-outdoor space (SOS) is frequently used as a social space within tall building forms where people can interact and connect. The study revealed the need to produce solutions which will make the patients feel at ease and comfortable when determining the boundaries of activity areas. In conclusion, patients wanted larger personal space boundaries and more enclosed spaces compared to other user groups and additionally, the study revealed that both groups preferred natural choices. The study examined whether there were differences in personal space boundaries of the patients themselves compared to other user groups and whether disease type and gender were effective on personal space boundaries.


All patients were treated with antipsychotic drugs in an unchanged manner throughout the study. In order to be able to determine these differences, the study was completed with a total of 202 users, including 101 inpatients and 101 healthy volunteers without history of mental disorders (34 visitors, 33 landscape architecture and 34 medical students receive training in psychiatry) as comparison groups in Ataköy Psychiatric Hospital garden. This study aimed to reveal differences in choices according to natural and enclosed criteria for spaces linked to activities completed by users in the garden of a psychiatric hospital.
